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Clematis armandii pruning

Julia1983Julia1983 ShropshirePosts: 139
Hello all,

I have a Clematis Armandii growing against a wall, planted last year. It is looking lovely at the moment and has put on lots of new growth. The thing is the nursery advised hard pruning it in its second year so it would grow new shoots from the bottom. I am loathe to cut off all that new growth though! ūüė≠¬† has anyone ever done this and would you recommend it, or should I leave it be?¬†¬†


  • RubytooRubytoo On the sofa, Southerly aspect.Posts: 1,287
    edited March 2019
    Be brave and do it. I know it is scarey I hate to with new clematis too.
    After you have enjoyed the flowers, cut it hard back. Then it has time for the new wood to mature and produce flowering stems for next year.

    Group one information often says "No prune" but most clematis can be pruned at the right time. Your new one needs some cutting back to help make new low down shoots and root growth.

    Once they get going Armandii are big strong growers. Also get used to big old shed leaves, they do take time to rot down they are quite tough.
    I used to pick ours up they were a tad annoying.

    Whoever sold it to you gave you good advice :)
  • Julia1983Julia1983 ShropshirePosts: 139
    Thankyou... I will have to be brave!   How long should I leave it do you think? April time or just wait till the  flowers have died back? 
  • ObelixxObelixx Vend√©e, Western FrancePosts: 27,561
    After the flowers, as Ruby says.   Armandii is a group 1 clem which simply means it gets pruned once flowering finishes and just enough to keep it in bounds.  They are vigorous so, well cultivated, yours can expect to get to 5 to 7m in length.   

    Following the supplier's advice will help make yours thicker and bushier and stronger with stems that have flowers lower down and not just at the ends.
    "We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw
  • Julia1983Julia1983 ShropshirePosts: 139
    Thanks  :) wall's about 10ft tall and much wider so really looking forward to seeing it go wild! 
  • Janie BJanie B LincolnshirePosts: 832
    I've just found this on the rhs www regarding Group 1s (which really just confirms all the advice above!):

    "To renovate, cut all stems back almost to the base, just after flowering. Apply a general fertiliser, mulch and water in dry spells. Response is generally good. Leave at least three years before pruning hard again"

    Never realised you could do this with Group 1s. I'm going to have a go at my old congested Macropetala Blue Bird this year....

    Thanks for asking the question!
  • ObelixxObelixx Vend√©e, Western FrancePosts: 27,561
    If and when you do prune it that hard make sure you give it a good feed of both slow release clematis feed and a liquid tonic of tomato feed.    
    "We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw
  • Janie BJanie B LincolnshirePosts: 832
    Thanks! Will do. X
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